Tone arm



FIG. 1 is a front, top and right side perspective view of a tone arm showing our new design;

FIG. 2 is a front and top perspective view thereof;

FIG. 3 is a rear and top perspective view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a left side and top perspective view thereof; and

FIG. 6 is a right side and top perspective view thereof. 

The ornamental design for a tone arm, as shown. 